Clay likes to look in the mirror because he's so very handsome (he's one of my favs)!!! My Red will look at me using the mirror all the time, but doesn't care to look at himself like your boy.
Red XIII - ~3 y/o GSD mix - stray/feral
Willie - 14 y/o Border Collie mix
Daisy - 17.5 y/o orange DLH kitty